﻿/*    
    OpenMheg - A free MHEG-5 library
    Copyright (C) 2008 Dharmesh Malam

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
using System;
using System.Collections.Generic;
using System.Text;
using Core.Model.Data.Type;
using ASN1Decoder.Builders.Nodes;
using Core.Model;
using Core.Model.Data;
using Exceptions;
using Core.Model.Groups;

namespace ASN1Decoder.Builders
{
    internal class ObjectRefBuilder
    {
        internal static ObjectRef Build(ASN1Node node, Group group)
        {
            var ret = new ObjectRef();

            if (node is IntNode)
            {
                ret.ObjectNumber = node.IntValue;
                // Set the group id to the id of this group.
                ret.GroupIdentifier = group.ObjectIdentifier.GroupIdentifier;
            }
            else if (node is SequenceNode)
            {
                var seq = (SequenceNode)node;
                ret.GroupIdentifier = seq.First.StringValue;
                ret.ObjectNumber = seq.Second.IntValue;
            }
            else 
                throw new OpenMhegException("ObjectRef: Argument is not int or sequence");

            return ret;
        }

    }
}
